Steps of truck manufacturing, at a General Motors factory in Pontiac, Michigan, USA. Workers at a factory work for casting engine block of a truck. Mould of engine poured with molten metal. When casting has set, the chain pulley crane lifts the engine so formed. Smoothening and reaming for cylinders of engine with various machines. Cylinder walls cast, then machined for uniform thickness on lathe machine. Worker fixes cylinder walls with engine housing.

Various steps of truck assembly operations, at a General Motors factory in Pontiac, Michigan, United States. Chassis and shaft of a truck. Universal joint and the combination gauge of truck. Workers work with machines to check perfection of these. Universal joint compared with that of a car. Rear axle checked for sturdiness by a worker. A worker then compares it with that of a car.

Various steps of General Motors truck final assembly and quality check processes, at a factory in Pontiac, Michigan, United States. View of truck frames on busy assembly line with General Motors workers. Fixing chassis and engine dropped by conveyors. Radiator, gears and meters fixed. Quality check measures and gas and oil consumption record taken. Worker does final inspection.

Various steps of truck manufacturing, at a General Motors factory in Pontiac Michigan, United States. Workers at a factory work on pistons of engine cylinders. Shaping and milling machines work upon the pistons. Drilling oil holes in the pistons. Workers inspect and weigh pistons precisely. Comparison of sizes of truck and a car. Hollow cut section of a pistons of truck.

Various steps of truck manufacturing, at a General Motors factory in Pontiac, Michigan, United States. Workers at a factory work on forging the layout of truck crankshaft Machines work upon heated metal pieces to form a crankshaft. Machining stages of the crankshaft. Workers inspect and precisely measures its lengths with a ruler. Comparison of crankshaft sizes of truck and a passenger car.

Various steps of truck manufacturing, at Pontiac, Michigan factory of General Motors Company in the United States. Workers at a factory work on manufacturing a truck camshaft. The camshaft under process, drop forged. Adding carbonizing material to it. Surface reheated and quenched. Finishing touches by workers. Workers inspect and precisely measures its uniformity with sensitive meters